Tunable bandstop filters using defected ground structure with active devices

J. D. Park; Y. J. Sung; S. H. Lee; Young Sik Kim

doi:10.1109/APMC.2005.1606278

Tunable bandstop filters using defected ground structure with active devices

J. D. Park, Y. J. Sung, S. H. Lee, Young Sik Kim

Division of Computer and Communication Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

14 Citations (Scopus)

Abstract

In this paper, tunable bandstop filters using defected ground structure (DGS) sections are presented. The DGS section is obtained by etching the conventional ground plane. To adjust the stopband, voltage controlled variable capacitor diodes (VVC) are equipped on the DGS section. The center frequency of the filter is varied from 1.44 GHz to 3.19 GHz as the reverse bias voltage is changed from 0 V to 20 V. The stopband of the proposed filter has a tunable range of 76 %. Using more than two DGS units, deeper suppression and wider tunable bandwidth are yielded. Good agreements between the simulated and measured results are obtained.

Original language	English
Title of host publication	Asia-Pacific Microwave Conference Proceedings, APMC
Volume	1
DOIs	https://doi.org/10.1109/APMC.2005.1606278
Publication status	Published - 2005 Dec 1
Event	APMC 2005: Asia-Pacific Microwave Conference 2005 - Suzhou, China Duration: 2005 Dec 4 → 2005 Dec 7

Other

Other	APMC 2005: Asia-Pacific Microwave Conference 2005
Country	China
City	Suzhou
Period	05/12/4 → 05/12/7

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Keywords

Bandstop filter
Microstrip filter
Tunable filter
Voltage control

ASJC Scopus subject areas

Engineering(all)

Cite this

Park, J. D., Sung, Y. J., Lee, S. H., & Kim, Y. S. (2005). Tunable bandstop filters using defected ground structure with active devices. In Asia-Pacific Microwave Conference Proceedings, APMC (Vol. 1). [1606278] https://doi.org/10.1109/APMC.2005.1606278

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abstract = "In this paper, tunable bandstop filters using defected ground structure (DGS) sections are presented. The DGS section is obtained by etching the conventional ground plane. To adjust the stopband, voltage controlled variable capacitor diodes (VVC) are equipped on the DGS section. The center frequency of the filter is varied from 1.44 GHz to 3.19 GHz as the reverse bias voltage is changed from 0 V to 20 V. The stopband of the proposed filter has a tunable range of 76 {\%}. Using more than two DGS units, deeper suppression and wider tunable bandwidth are yielded. Good agreements between the simulated and measured results are obtained.",

keywords = "Bandstop filter, Microstrip filter, Tunable filter, Voltage control",

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N2 - In this paper, tunable bandstop filters using defected ground structure (DGS) sections are presented. The DGS section is obtained by etching the conventional ground plane. To adjust the stopband, voltage controlled variable capacitor diodes (VVC) are equipped on the DGS section. The center frequency of the filter is varied from 1.44 GHz to 3.19 GHz as the reverse bias voltage is changed from 0 V to 20 V. The stopband of the proposed filter has a tunable range of 76 %. Using more than two DGS units, deeper suppression and wider tunable bandwidth are yielded. Good agreements between the simulated and measured results are obtained.

AB - In this paper, tunable bandstop filters using defected ground structure (DGS) sections are presented. The DGS section is obtained by etching the conventional ground plane. To adjust the stopband, voltage controlled variable capacitor diodes (VVC) are equipped on the DGS section. The center frequency of the filter is varied from 1.44 GHz to 3.19 GHz as the reverse bias voltage is changed from 0 V to 20 V. The stopband of the proposed filter has a tunable range of 76 %. Using more than two DGS units, deeper suppression and wider tunable bandwidth are yielded. Good agreements between the simulated and measured results are obtained.

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KW - Tunable filter

KW - Voltage control

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Access to Document

10.1109/APMC.2005.1606278